Features

  Hardware

● Main chip—PA1688 50MHz

● Data Memory—2MB SDRAM

● Program Memory—1 MB Flash memory

● Ethernet Port—10/100M Connectors

● AC/DC adapter—Input AC100--- 230V£¬Output 9V DC, 1A

  Software

● DHCP support for LAN or Cable modem

● PPPoE support for ADSL or Cable modem

● Set phone by HTTP web browser or Telnet

● Upgrade by FTP(TFTP optional)

● Support major G.7XX ;GSM610 audio codec

● VAD(Voice active detect)

● CNG (Comfort noise generation)

● Dynamic voice jitter buffer

● G.167/165 compliant 16ms echo cancellation

● Tone generation and Local DTMF re-generation according with ITU-T

● Support the Inband audio; the H245 String; the Q931 Keypad etc

 DTMF transmission method

● E.164 dial plan and customized dial rules

● 100 entries for speed dial

80 entries each for missed calls, answered calls and dialed calls

Voice prompt

● Hotline

● Adjustable volume for both handset and speaker

Support adjustable user password and super password

Standard and Protocol

NT-320 H323 Phone supports following standard and protocol:

● IEEE 802.3 /802.3 u 10 Base T / 100Base TX

● Major G.7XX; GSM610 audio codec

● H.323 V4

● TCP/IP: Internet transfer and control protocol

● RTP: Real-time Transport Protocol

● RTCP£ºReal-time Control Protocol

● VAD/CNG save bandwidth

● DHCP£ºDynamic Host Configuration Protocol

● PPPoE£ºPPP Protocol over Ethernet

● DNS£ºDomain Name Server

● Telnet£ºInternet's remote login protocol

● FTP£ºFile Transfer protocol

● TFTP£ºFile Transfer protocol (optional)

● HTTP£ºHyper Text Transfer protocol

Build in H.323 proxy